Surgical scalpel



FIG. 1 is a perspective view of a surgical scalpel showing our new design;

FIG. 2 is a right side view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a front view thereof; and,

FIG. 7 is a rear view. 

The ornamental design for a surgical scalpel, as shown and described. 